clear AHB0 and AHB1 data sections
Merge pull request #417 from wolfmanjm/upstreamedge

clear AHB0 and AHB1 data sections
Merge remote-tracking branch 'upstream/edge' into edge
remove webif as it never worked and has been abandoned
Merge branch 'edge' of github.com:Smoothieware/Smoothieware into edge
Merge remote-tracking branch 'upstream/edge' into edge